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512444444 = 22128111111
BaseRepresentation
bin11110100010110…
…100100000011100
31022201020212121212
4132202310200130
52022141210234
6122503243552
715461464061
oct3642644034
91281225555
10512444444
11243297106
121237495b8
1382221485
144c0b4c68
152eec55ce
hex1e8b481c

512444444 has 6 divisors (see below), whose sum is σ = 896777784. Its totient is φ = 256222220.

The previous prime is 512444437. The next prime is 512444461. The reversal of 512444444 is 444444215.

512444444 is a modest number, since divided by 44444 gives 5124 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 512444444.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64055552 + ... + 64055559.

It is an arithmetic number, because the mean of its divisors is an integer number (149462964).

Almost surely, 2512444444 is an apocalyptic number.

It is an amenable number.

512444444 is a deficient number, since it is larger than the sum of its proper divisors (384333340).

512444444 is a wasteful number, since it uses less digits than its factorization.

512444444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128111115 (or 128111113 counting only the distinct ones).

The product of its digits is 40960, while the sum is 32.

The square root of 512444444 is about 22637.2357853162. The cubic root of 512444444 is about 800.2314143028.

Adding to 512444444 its reverse (444444215), we get a palindrome (956888659).

The spelling of 512444444 in words is "five hundred twelve million, four hundred forty-four thousand, four hundred forty-four".

Divisors: 1 2 4 128111111 256222222 512444444